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28 Aug 2018

Last Questions, please help! Cell Bio

1. Interpret the genetic code, including how codons and anticodons are used

2. Define reading frames, and what happens when they are changed

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Nelly Stracke
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29 Aug 2018

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Related questions

Please help me understand these concepts!

1)Explain the roles of checkpoints, cyclins, and CDKs (don’t need to memorize specific cyclins or CDKs).
2)Explain the structure and function of the mitotic spindle.
3) Define reading frames, and what happens when they are changed (recall: the red dog ate hat)

What are codons, the genetic code, redundancy, and reading frames?

What are the important structural features of a tRNA?

What is the relationship between the number of possible codons, amino acids, and tRNAs?

What is tRNA charging? What is the enzyme responsible for tRNA charging?

What are ribosomes made of? What are the roles of the large and small subunit? What are the E, P, and A sites? What is the function of the rRNAs?

What are the steps in translation including initiation, elongation, and termination? What are the roles of the initiator tRNA, translation initiation factors, EF-Tu/EF1, EF-G/EF2, and release factors?

What is the match between a codon and tRNA proofread?

What is a polysome?

What do proteasomes, ubiquitin, and proteases have to do with protein degradation (proteolysis)?

1- What is one potential deleterious effect of somaticmutations?

2- Why is the genetic code referred to as “degenerate”?

3- Given that the genetic code is degenerate, what are the twoways by which different codons may still code for the same aminoacid? Just give the names, you don’t need to describe how theywork.

4- If an enzyme described in question #3 should incorrectlyattach a Serine to a tRNA that has an Arginine anticodon (i.e., itsanticodon is complementary to an Arginine codon), what will be theconsequence when that charged tRNA participates intranslation?

5- ________________________________ are the enzymes that attachamino acids to tRNAs.

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